/// <summary>
        /// 下载图片进度
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        void bitmapImage_DownloadProgress(object sender, DownloadProgressEventArgs e)
        {
            if (e.Progress == 100)
            {
                BitmapImage bitmapImage = sender as BitmapImage;
                int         height      = bitmapImage.PixelHeight;
                int         width       = bitmapImage.PixelWidth;

                //当下载的图片有效时
                if (height > 0 && width > 0)
                {
                    if (width > bitmapImage.PixelHeight)
                    {
                        CurImage.Width = (width < CurImage.MaxWidth) ? width : CurImage.MaxWidth;
                    }
                    else
                    {
                        CurImage.Height = (height < CurImage.MaxHeight) ? height : CurImage.MaxHeight;
                    }


                    CurImageFadeIn.Begin();
                }
                else //不存在或路径无效时
                {
                    CurImage.Source = new BitmapImage(new Uri("/Images/NoPhoto.png", UriKind.RelativeOrAbsolute));
                    CurImage.Width  = 380;
                    CurImage.Height = 250;
                }
                LoadingBar.Visibility = System.Windows.Visibility.Collapsed;
            }
            else
            {
                //LoadInfo.Content = "正在加载数据" + e.Progress + "...";
                LoadingBar.Value      = e.Progress;
                LoadingBar.Visibility = System.Windows.Visibility.Visible;
            }
        }
        /// <summary>
        /// 下载图片进度
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        void bitmapImage_DownloadProgress(object sender, DownloadProgressEventArgs e)
        {
            if (e.Progress == 100)
            {
                BitmapImage bitmapImage = sender as BitmapImage;
                int         height      = bitmapImage.PixelHeight;
                int         width       = bitmapImage.PixelWidth;

                //当下载的图片有效时
                if (height > 0 && width > 0)
                {
                    if (width > bitmapImage.PixelHeight)
                    {
                        CurImage.Width = (width < CurImage.MaxWidth) ? width : CurImage.MaxWidth;
                    }
                    else
                    {
                        CurImage.Height = (height < CurImage.MaxHeight) ? height : CurImage.MaxHeight;
                    }

                    //SetPositionInfo(height, width);
                    LoadInfo.Visibility = System.Windows.Visibility.Collapsed;
                    CurImageFadeIn.Begin();
                }
                else //不存在或路径无效时
                {
                    //CurImage.Source = new BitmapImage(new Uri("/Images/NoPhoto.jpg", UriKind.RelativeOrAbsolute));
                    //CurImage.Width = 142;
                    //CurImage.Height = 119;
                    LoadInfo.Content = "图片信息无效!";
                }
            }
            else
            {
                LoadInfo.Content = "正在加载数据" + e.Progress + "...";
            }
        }